3" Fig 1502 Female (Threaded) x 2-7/8" EUE Swage | High-Pressure Tubing Crossover Adapter

The 3" Fig 1502 Female (Threaded) x 2-7/8" EUE Swage is a heavy-duty, precision-engineered crossover adapter designed to provide a safe, leak-free transition from large-capacity 3-inch surface flowlines to standard 2-7/8" downhole tubing strings. This robust fitting features a 3-inch Figure 1502 Female threaded connection (designed to safely receive a standard 3" 1502 male sub and wing nut) on one end, and a standard 2-7/8" External Upset End (EUE) 8-Round tubing thread on the opposing end.

Manufactured from a solid block of high-strength, heat-treated forged alloy steel, this integral swage is built to endure the massive fluid volumes, extreme mechanical stresses, and intense vibrations inherent in large-scale well intervention and frac flowback operations. By providing a direct, one-piece step-down from a 3-inch, 15,000 PSI surface manifold to 2-7/8" wellhead tubing, it eliminates the need for stacking multiple adapters, thereby reducing rig-up time, minimizing potential leak paths, and drastically improving overall site safety.

Utilizing a seamless, integral forged design rather than a fabricated or welded construction ensures the elimination of structural weak points. This maximizes blowout resistance, preserves mechanical integrity, and guarantees a reliable seal during high-capacity fluid transfer, heavy-duty cementing, and extreme-volume well testing procedures.

Features & Benefits

• Integral Forged Construction: Machined from premium, solid alloy steel forgings to eliminate weld-seam vulnerabilities, providing maximum fatigue resistance under extreme pressure and vibration.

• Female Threaded Connection: Features a precision-cut 3" 1502 female thread, designed to securely mate with any standard 3" 1502 male wing nut assembly for rapid field integration.

• Direct Tubing Tie-In: Safely and efficiently transitions from heavy-duty 3-inch, 15,000 PSI surface frac iron down to larger 2-7/8" EUE well tubing, ideal for high-volume operations.

• High-Pressure Durability: The 3" Fig 1502 female end is engineered for 15,000 PSI Cold Working Pressure (CWP). (Note: Overall system working pressure must be regulated to the maximum safe rating of the specific 2-7/8" EUE tubing being utilized).

• Precision Machined Threads: The 8-Round EUE tubing threads are cut to exacting API standards to ensure superior galling resistance and a flawless, high-pressure downhole connection.

Specifications & Technical Details

Applications

This 3" Female x 2-7/8" EUE Crossover Swage is an essential adapter for bridging the gap between high-volume surface iron and downhole tubulars. It is heavily utilized in large-capacity well testing packages, frac flowback tie-ins, heavy-duty cementing manifolds, and acidizing operations to connect temporary high-pressure flowlines directly to the wellhead.

Quality Assurance

Every crossover swage is subjected to rigorous quality control protocols. The alloy steel forgings undergo ultrasonic flaw detection to verify internal structural density and integrity. The EUE 8-Round threads are meticulously inspected using calibrated API thread gauges, while the 1502 female threads are verified to exact tolerances to ensure seamless integration with male components in the field.

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